Materials Transactions Online

Materials Transactions, Vol.54 No.03 (2013) pp.412-414
© 2013 The Japan Institute of Metals

A Thermodynamic Study of Nonstoichiometric Ce0.97Zr0.03O2−δ for Dissociation of H2O

Jingchao Tao, J. Wang and Anping Dong

State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China

The thermodynamic properties of 3%mol zirconia doped ceria nano-size powders prepared by sol-gel were studied by thermogravity analysis. The entropy and enthalpy extracted from the data of thermogravity experiment of 3%mol zirconia doped ceria compared with undoped ceria were analyzed. The data of Gibbs free energy calculated by the data of entropy and enthalpy of 3%mol zirconia doped ceria compared with undoped ceria and water were investigated. The temperature range and the heat energy required of dissociating water obtained from the data of Gibbs free energy of 3%mol zirconia doped ceria compared with undoped ceria were shown as the result of this study.

(Received 2012/12/04; Accepted 2012/12/25; Published 2013/02/25)

Keywords: 3%mol zirconia doped ceria (ZDC03), entropy and enthalpy, dissociating water

PDF(Free)PDF (Free) Table of ContentsTable of Contents

REFERENCES

  1. R. J. Panlener, R. N. Blumenthal and J. E. Garnier: J. Phys. Chem. Solids 36 (1975) 1213.
  2. W. C. Chueh and S. M. Haile: Phil. Trans. R. Soc. A 368 (2010) 3269-3294.
  3. W. C. Chueh, C. Falter, M. Abbott, D. Scipio, P. Furler, S. M. Haile and A. Steinfeld: Science 330 (2010) 1797-1801.
  4. R. W. McCabe and J. M. Kisenyi: Chem. Ind. 43 (1995) 605.
  5. M. Shelef, G. W. Graham and R. W. McCabe: Catalysis by Ceria and Related Materials, ed. by A. Trovarelli, (Imperial College Press, London, 2002) pp. 108-109.
  6. J. Kašpar, P. Fornasiero and N. Hickey: Catal. Today 77 (2003) 419.
  7. M. Sugiura, M. Ozawa, A. Suda, T. Suzuki and T. Kanazawa: Bull. Chem. Soc. Jpn. 78 (2005) 752.
  8. H. Shinjoh: J. Alloy. Compd. 1061 (2006) 408-412.
  9. T. Masui, T. Ozaki, K.-I. Machida and G.-Y. Adachi: J. Alloy. Compd. 49 (2000) 303-304.
  10. M. Ozawa, M. Kimura and A. Isogai: J. Alloy. Compd. 73 (1993) 193.
  11. G. Zhou, P. R. Shah, T. Kim, P. Fornasiero and R. J. Gorte: Catal. Today 123 (2007) 86-93.
  12. S. Abanades: J. Mater. Sci. 45 (2010) 4163.


[JIM HOME] [JOURNAL ARCHIVES]

© 2013 The Japan Institute of Metals
Comments to us : editjt@jim.or.jp